Senior Full Stack Engineer (Go/React)

SpotOn•Chicago, IL

3d•$123,000 - $175,000

About The Position

We're looking for a Senior Full Stack Engineer to join our Restaurant POS team at SpotOn. You'll work across our Go backend and React frontend to build features that power thousands of restaurants. This is a high-impact role where your code runs in production environments serving real guests and staff every day.

Requirements

5+ years of professional software engineering experience
Strong proficiency in Go (or similar statically-typed backend language with willingness to learn Go quickly)
Strong proficiency in React and TypeScript
Experience with MongoDB or other document databases
Experience designing and consuming RESTful APIs
Comfort working in a large, established codebase with multiple contributors
Experience with real-time communication patterns (WebSockets, message queues)
Solid understanding of state management in complex frontend applications
Work authorization in the U.S. is required.

Nice To Haves

Experience with NATS or similar messaging systems
Experience with gRPC and protocol buffers
Experience in hospitality tech, payments, or POS systems
Experience with Webpack, monorepo tooling, or complex build pipelines
Familiarity with Docker, Kubernetes, and cloud infrastructure (AWS)
Experience with observability tools (Grafana, Prometheus, distributed tracing)

Responsibilities

Design and implement features spanning the full stack: Go services, REST/WebSocket APIs, and React UI
Work across multiple product surfaces including Front of House (POS terminals) and Back of House (management tools)
Collaborate with product, design, and other engineering teams to ship features end-to-end
Contribute to system reliability, performance, and scalability as we grow our merchant base
Participate in code reviews, architecture discussions, and on-call rotation
Help modernize our frontend architecture